// Protocol Buffers - Google's data interchange format
// Copyright 2015 Google Inc.  All rights reserved.
// Author: jieluo@google.com (Jie Luo)
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Google.ProtocolBuffers.DescriptorProtos;

namespace Google.ProtocolBuffers.Descriptors
{
    public sealed class OneofDescriptor
    {
        private int index;
        private OneofDescriptorProto proto;
        private FileDescriptor file;
        private MessageDescriptor containingType;
        internal int fieldCount;
        internal IList<FieldDescriptor> fields;

        internal OneofDescriptor(OneofDescriptorProto proto, FileDescriptor file,
                                 MessageDescriptor parent, int index)
        {
            this.proto = proto;
            this.file = file;
            this.index = index;

            containingType = parent;
            fieldCount = 0;
        }

        public int Index
        {
            get { return index; }
        }

        public MessageDescriptor ContainingType
        {
            get { return containingType; }
        }

        public int FieldCount
        {
            get { return fieldCount; }
        }

        public FieldDescriptor Field(int index)
        {
            return fields[index];
        }
    }
}
